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Home / Products / Air Filters / AB Series Hydraulic Air Breather Filter
AB Series Hydraulic Air Breather Filter

AB Series Hydraulic Air Breather Filter

The AB Series Hydraulic Breather Filter is a compact hydraulic accessory installed on tank covers to manage air exchange and help keep working oil clean. As the oil level rises or falls, it allows air to enter or leave the tank while helping maintain pressure balance.
The structure follows common C-type breather installation dimensions and supports ZG and M thread options for hydraulic power stations, gearboxes, and reduction gear units.



Customised Services

We provide OEM support for the Hydraulic Breather Filter based on equipment and purchasing requirements.
Thread Options: ZG or M thread configurations.
Installation Adaptation: Review of existing tank-cover dimensions and connections.
Filter Element: Replaceable element configuration according to application requirements.
Product Identification: Custom product markings for equipment brands and distributors.
Packaging: Packaging specifications can be arranged according to brand requirements.
Order Support: MOQ of 10 pieces, with 5–7 days standard production.

  • Specifications

  • Areas of Application

  • Product Benefits

  • FAQ

  • Inquiry

  • Model A B C D E F G H Air flow (m³/min) Filtr. (μm) Weight (kg)
    AB-06 3/4" 100 65 18 98 45 37 28 0.35 40 0.22
    AB-08 1" 100 65 25 101 45 34 37 0.45 40 0.28
    AB-12 1 1/2" 126 92 39 156 90 43 52 2.1 40 0.52
    AB-16 2" 126 92 48 156 90 42 67 2.1 40 0.62
    AB-20 2 1/2" 170 130 64 200 120 47 81 3.5 40 1.12
    AB-24 3" 170 130 72 200 120 48 98 4.6 40 1.2
    AB-32 4" 215 176 95 233 140 52 124 7.1 40 1.94
  • Areas of Application

    The Hydraulic Breather Filter is suitable for:
    Hydraulic Power Stations: Supports tank air exchange and pressure balance during operation.
    Hydraulic Oil Tanks: Works as a Hydraulic Tank Air Filter to reduce dust and airborne contamination.
    Gearboxes: Provides filtered air exchange for enclosed oil systems.
    Reduction Gear Units: Supports cleaner air circulation as internal pressure changes.
    Equipment Manufacturing: Suitable for new equipment assembly and replacement components.
    Maintenance & Distribution: Suitable for spare-part inventories and hydraulic equipment servicing.

  • Product Benefits

    Replaceable Filter Element: Allows the filtration element to be changed separately during scheduled maintenance.
    Pressure Balance Support: Enables inward and outward air movement as the tank oil level changes.
    Dual Filtration: Filters incoming air and newly added oil before it enters the tank.
    ZG & M Threads: Provides two thread configuration options for different installation requirements.
    Multi-Equipment Use: Suitable for hydraulic stations, gearboxes, and reduction gear units.

  • FAQ

    1. What is the function of a Hydraulic Tank Air Filter?
    It filters incoming air while allowing the tank to exchange air as the oil level changes.

    2. Can the filter element be replaced separately?
    Yes. The replaceable element can be changed without replacing the complete breather assembly.

    3. Can the Hydraulic Breather Filter be used on gearboxes?
    Yes. It is suitable for gearboxes and reduction gear units requiring filtered air exchange.

    4. How do I choose between ZG and M threads?
    Select the thread that matches the existing equipment connection.

    5. What are the MOQ and lead time?
    MOQ starts at 10 pieces, with standard production in 5–7 days.

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About Us
Wenzhou Jingtong Hydraumatic Co.,Ltd

Wenzhou Jingtong Hydraulic Co., Ltd. of China (Formerly Wenzhou Jingtong Hydraulic Parts Factory) was founded in 2006. It is situated at Li'ao Industrial Zone, Qiaoxia, Yongjia, Wenzhou, Zhejiang, China, beside the Oubei Expressway Exit at the intersection of Yongtaiwen and Jinliwen Expressways. The company owns more than 6,000 square meters of standard factory buildings and ranks among China’s major large-scale manufacturers focusing on hydraulic filters. Our brand has earned a solid reputation at home and abroad, supported by over 20 sales outlets nationwide. Our product portfolio covers a full range of hydraulic filters, hydraulic air breathers, oil coolers, accumulators, liquid level controllers, liquid level & temperature gauges, miniature pressure test hose assemblies, filtration units and other hydraulic accessories.

Endowed with strong technical strength, advanced production technologies and strict inspection procedures, we maintain consistent product quality and have passed ISO9001:2008 Quality Management System Certification. We have been awarded a series of honors including AAA Grade Contract-abiding & Trustworthy Enterprise, AAA Grade Integrity Operation Demonstration Unit, AAA Grade Credit Enterprise, China Famous Brand. Our products cater to a wide spectrum of sectors covering construction and engineering machinery, mining and metallurgical equipment, hydraulic engineering systems, machine tools, agricultural machinery, plastic machinery, petrochemical industry as well as marine and offshore engineering equipment.

Upholding the tenet of “Integrity First” and the guideline of “Quality Priority”, we sincerely welcome valuable suggestions and feedback from customers worldwide to help us keep optimizing our products.

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